3 phase horizontal separation vessel design

[_ANS_]

Hi,

1. When you have a weir inside the vessel, does the height of it usually be the same as the normal interface level? or in some cases it might be higher than the NIL ?

2. Is there like a rule of thumb on how you determine the position of the weir along the vessel shell length ?

3. is there also a rule of thumb on determining all the levels (LIL,NIL,HIL, LLL, NLL, HLL) inside a vessel for both light and heavy phases?


Thank you

 

[r6155]

The weir plate may generate a confined space and difficult the access for inspection. Hence one more inspection opening is required. This opening may be installed on the weir plate.

Regards

 

[mk3223]

IMO, all these levels of the vessel are determined from the pilot study and based on the certain process conditions, such as flow, P&T, liquid property, etc. And, the weir height may be covered above HIL per the process needed.